JP2020118580A - Antiaircraft beacon fixing jig and surveying method using the same - Google Patents
Antiaircraft beacon fixing jig and surveying method using the same Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000003780 insertion Methods 0.000 claims description 18
- 230000037431 insertion Effects 0.000 claims description 18
- 239000003550 marker Substances 0.000 claims description 7
- 238000009434 installation Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
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Abstract
Description
本発明は対空標識固定治具及びそれを利用した測量方法に関し、特に、測量杭へ対空標識を取付ける構成とし、既設の測量杭を利用可能とし、対空標識の設置容易性と、上空からの認識確実性を実現した対空標識固定治具及びそれを利用した測量方法に関する。 The present invention relates to an anti-aircraft sign fixing jig and a surveying method using the jig, and in particular, it is configured to attach an anti-aircraft marker to a surveying pile, makes it possible to use an existing surveying pile, and facilitates installation of the anti-aircraft sign and recognition from the sky. The present invention relates to an anti-aircraft sign fixing jig that achieves reliability and a surveying method using the jig.
土木・建築工事等の地形測量や急斜面の３次元形状の測量においては、パルス式レーザーを使用したレーザースキャナによる測量が行われる。
このレーザースキャナによる測量は、スキャナ装置から多数のレーザーパルスを対象範囲ならびに対象物に照射し，そのレーザーパルスが地形・地物に反射し機器に戻ってくるレーザーを計測して詳細な３次元データを得る手法である。
For topographical surveys such as civil engineering and construction work, and for surveying the three-dimensional shape of steep slopes, surveys are performed using laser scanners that use pulsed lasers.
In this survey using a laser scanner, a large number of laser pulses are radiated from the scanner device to the target range and target, and the laser pulses reflected by the topography and features are returned to the equipment to measure detailed three-dimensional data. Is a method of obtaining.
また、山間部等の広域の測量に際しては、ドローン（無人飛行体）に写真撮影機器またはレーザー機器を搭載し、上空から地表の状態を計測する手法が採用されている。
そして、これら航空測量に際しては、対象範囲に予め複数の対空標識あるいはターゲット板を設置し、それらの対空標識やターゲット板の位置を基準として計測精度を高めるシステムが採用されている。
このような航空測量に関する技術として、特許文献１の技術が提案されている。
In addition, when surveying a wide area such as in a mountainous area, a technique of mounting a photo-taking device or a laser device on a drone (unmanned air vehicle) and measuring the condition of the ground surface from the sky is adopted.
In these aerial surveys, a system in which a plurality of anti-aircraft signs or target plates are installed in advance in the target range and the measurement accuracy is increased with reference to the positions of these anti-aircraft signs and target plates is adopted.
As a technique related to such aerial survey, the technique of Patent Document 1 is proposed.
前記特許文献１の技術は航空測量に関する技術であるが、対空標識を設置する点についての記載がなく、対空標識を設置する場合には別途測量が必要であり、特に、傾斜地、凹凸、植生等の状況により場所によっては対空標識の設置が困難という問題があった。 The technique of the above-mentioned Patent Document 1 is a technique related to aerial surveying, but there is no description about the point of installing an anti-aircraft sign, and when installing an anti-aircraft sign, separate surveying is required, and in particular, slopes, unevenness, vegetation, etc. Depending on the situation, it was difficult to install anti-aircraft signs in some places.
本発明はかかる従来の問題点を解決するためになされたものであって、その目的とするところは、測量杭へ対空標識を取付ける構成とし、既設の測量杭を利用可能とし、対空標識の設置容易性と、上空からの認識確実性を実現した対空標識固定治具及びそれを利用した測量方法を提供することにある。 The present invention has been made in order to solve the above conventional problems, and an object of the present invention is to attach an anti-aircraft sign to a survey pile, enable use of an existing survey pile, and install an anti-aircraft sign. An object is to provide an anti-aircraft sign fixing jig that realizes easiness and certainty of recognition from the sky, and a surveying method using the jig.
前記目的を達成するための手段として本発明請求項１記載の対空標識固定治具では、測量杭の上頭部への取付部と、対空標識を水平方向に支持固定する支持固定部を備えており、測量杭の上頭部に配置された基準部位と、対空標識の中心を位置合わせして取り付け可能としたことを特徴とする。 As means for achieving the above object, the anti-aircraft sign fixing jig according to claim 1 of the present invention comprises a mounting portion to the upper head of the survey pile and a support fixing portion for horizontally supporting and fixing the anti-aircraft sign. It is characterized in that it can be attached by aligning the center of the anti-aircraft sign with the reference site located on the upper head of the survey pile.
請求項２記載の対空標識固定治具では、請求項１記載の対空標識固定治具において、測量杭の頂部に打ち込まれた基準部位を示す釘を露出した状態で対空標識を取り付け可能としたことを特徴とする。 In the anti-aircraft sign fixing jig according to claim 2, in the anti-aircraft sign fixing jig according to claim 1, it is possible to attach the anti-aircraft sign with the nail indicating the reference portion driven into the top of the survey pile exposed. Is characterized by.
請求項３記載の対空標識固定治具では、請求項１〜２いずれか記載の対空標識固定治具において、前記取付部は、測量杭の側面をボルトによって締め付ける構成とされており、前記支持固定部は、測量杭の頂部に載置された盤面を備えていることを特徴とする。 The anti-aircraft sign fixing jig according to claim 3 is the anti-aircraft sign fixing jig according to any one of claims 1 and 2, wherein the mounting portion is configured to fasten a side surface of the survey pile with a bolt, and the support fixing. The section is characterized by including a board surface placed on the top of the survey pile.
請求項４記載の対空標識固定治具では、請求項１〜３いずれか記載の対空標識固定治具において、四方の側面と、その四方の側面の上に配置される正方形の上面とを備え、正方形の上面の中心には基準部位の釘の露出孔が形成されており、側面には間隔をおいて複数のボルトの挿通孔が形成されていることを特徴とする。 The anti-aircraft sign fixing jig according to claim 4 is the anti-aircraft sign fixing jig according to any one of claims 1 to 3, comprising four side surfaces and a square upper surface arranged on the four side surfaces. It is characterized in that an exposed hole for the nail of the reference portion is formed in the center of the upper surface of the square, and a plurality of bolt insertion holes are formed at intervals on the side surface.
請求項５記載の測量方法では、請求項１〜４いずれか記載の対空標識固定治具によって、測量杭に対空標識を取り付け、その対空標識を利用した航空測量を行うことを特徴とする。 The surveying method according to claim 5 is characterized in that the anti-aircraft sign fixing jig according to any one of claims 1 to 4 is used to attach an anti-aircraft sign to the survey pile and perform aerial survey using the anti-aircraft sign.
請求項６記載の測量方法では、請求項５記載の測量方法において、ドローンによる写真測量またはレーザー測量を行うことを特徴とする。 According to a sixth aspect of the surveying method, the surveying method according to the fifth aspect is characterized in that the photogrammetry or the laser surveying by a drone is performed.
請求項１記載の対空標識固定治具においては、測量杭の上頭部への取付部と、対空標識を水平方向に支持固定する支持固定部を備えているので、基準点測量が完了した既設の測量杭に対空標識を取り付けることができる。
また、測量杭の上頭部に配置された基準点と、対空標識の中心を位置合わせして取り付けるので、詳細に計測された基準点を対空標識の中心として利用できる。
In the anti-aircraft sign fixing jig according to claim 1, since it is provided with a mounting portion to the upper head portion of the survey pile and a support fixing portion that supports and fixes the anti-aircraft sign in the horizontal direction, the existing equipment where the reference point survey is completed Anti-aircraft signs can be attached to the survey piles.
Moreover, since the reference point arranged on the upper head of the survey pile and the center of the anti-aircraft sign are aligned and attached, the reference point measured in detail can be used as the center of the anti-aircraft sign.
請求項２記載の対空標識固定治具においては、測量杭の頂部に打ち込まれた基準点を示す釘を露出した状態で取り付け可能としたので、基準点と対空標識の中心を確実に一致させることができると共に、基準点に合わせて対空標識の中心が取付けられていることを目視でも確認可能である。 In the anti-aircraft sign fixing jig according to claim 2, since the nail indicating the reference point driven into the top of the survey pile can be attached in an exposed state, the reference point and the center of the anti-aircraft sign must be surely aligned. At the same time, it is possible to visually confirm that the center of the anti-aircraft sign is attached to the reference point.
請求項３記載の対空標識固定治具においては、取付部は、測量杭の側面をボルトによって締め付ける構成とされているので、ボルトによって測量杭に本体が確実に固定される。
また、前記支持固定部は、測量杭の頂部に載置された盤面を備えているので、頂部の上に載せられた状態で対空標識の荷重が支えられ、対空標識が水平方向に支持固定される。
In the anti-aircraft sign fixing jig according to the third aspect of the present invention, since the mounting portion is configured to tighten the side surface of the survey pile with bolts, the main body is securely fixed to the survey pile with the bolts.
Further, since the supporting and fixing portion includes a board surface placed on the top of the survey pile, the load of the anti-aircraft sign is supported while being placed on the top, and the anti-aircraft sign is horizontally supported and fixed. It
請求項４記載の対空標識固定治具では、四方の側面と、その四方の側面の上に配置される正方形の上面とを備え、正方形の上面の中心には釘の露出孔が形成されており、側面には間隔をおいて複数のボルトの挿通孔が形成されているので、測量杭及び対空標識の取付けが容易であり、しかも確実な支持構造が実現される。 The anti-aircraft sign fixing jig according to claim 4 is provided with four side surfaces and a square upper surface arranged on the four side surfaces, and a nail exposing hole is formed at the center of the square upper surface. Since the plurality of bolt insertion holes are formed on the side surface at intervals, it is easy to attach the survey pile and the anti-aircraft sign, and a reliable support structure is realized.
請求項５記載の測量方法では、請求項１〜４いずれか記載の対空標識固定治具によって、測量杭に対空標識を取り付け、その対空標識を利用した航空測量を行うので、測量が完了した既設の測量杭に対空標識を取り付けて測量を行うことができる。 In the surveying method according to claim 5, since the anti-aircraft sign fixing jig according to any one of claims 1 to 4 is used to attach an anti-aircraft sign to the survey pile and perform the aerial survey using the anti-aircraft sign, the existing surveying is completed. It is possible to carry out surveys by attaching anti-aircraft signs to the survey piles.
請求項６記載の測量方法では、ドローンによる写真測量またはレーザー測量を行うので、安定した低空飛行により精度の高い測量を行うことができる。
特に、レーザー測量を行うので、地形の詳細なデジタルデータが取得可能である。
In the surveying method according to the sixth aspect, since the photogrammetry or the laser surveying by the drone is performed, the surveying with high accuracy can be performed by the stable low-altitude flight.
In particular, since laser surveying is performed, detailed digital data of the terrain can be acquired.
本発明の第１実施例に係る対空標識固定冶具は、図１〜９に示すように、側面２及び上面３を有する外郭（本体１）を有しており、側面２には２か所にボルト挿通孔４を備えている。
前記上面３は平面視形状が正方形に形成されており、それぞれ四方の縁から側面２が垂下している。
底面は開口されており、本体１の全体形状は側面２及び上面３によって囲われた箱状体とされている。
As shown in FIGS. 1 to 9, the anti-aircraft sign fixing jig according to the first embodiment of the present invention has an outer shell (main body 1) having a side surface 2 and an upper surface 3, and the side surface 2 has two locations. A bolt insertion hole 4 is provided.
The top surface 3 is formed in a square shape in a plan view, and the side surfaces 2 hang down from the four edges, respectively.
The bottom surface is opened, and the overall shape of the main body 1 is a box-like body surrounded by the side surface 2 and the upper surface 3.
本体１の材質は一例として樹脂等の硬材から形成されており、その形状は、厚さ５ｍｍ前後、上面の一辺の長さ１００〜１１０ｍｍ、側面の高さ６０ｍｍの形状とされている。
この材質・形状については適用する測量杭５、対空標識６の形状、大きさ等に応じて適宜設定される。
側面２及びボルト挿通孔４は取付部として機能する部位であり、上面３は対空標識の支持固定部として対空標識６が取り付けられる部位である。
The material of the main body 1 is formed of a hard material such as resin as an example, and its shape is about 5 mm in thickness, one side of the upper surface has a length of 100 to 110 mm, and a side surface has a height of 60 mm.
The material and shape are appropriately set according to the shape, size and the like of the survey pile 5 and the anti-aircraft sign 6 to be applied.
The side surface 2 and the bolt insertion hole 4 are portions that function as attachment portions, and the upper surface 3 is a portion to which the anti-aircraft marker 6 is attached as a support and fixing portion of the anti-aircraft marker.
側面２にはそれぞれ左右方向に間隔をおいて２か所にボルト挿通孔４が形成されている。
このボルト挿通孔４は、側面上下方向の中央やや下側に配置されている。
ボルト挿通孔４には金属製ナット７（図８参照）が樹脂製の本体１に埋め込まれて固定されている。
側面から直角にボルト８をねじ込むと、ボルト先端が内部の測量杭５の側面を抑え付けるように機能する。
本体１を測量杭５に取り付ける際には、後述する露出孔９と釘１０の位置を合わせながら、測量杭５の上頭部に本体の上面３を重ね合わせて本体１をセットする。そして、測量杭５の位置を確認しながら２か所のボルト挿通孔４のいずれか選択してボルト８をねじ込む。ボルト挿通孔４は横方向（水平方向）に間隔を開けて２か所に形成されているので、本体１の隅に測量杭５が位置した場合でも、測量杭５が位置する側のボルト挿通孔４からボルト８をねじ込むことにより、内部の測量杭５は四方からボルト８によって抑え付けられ、本体１が固定される。
Bolt insertion holes 4 are formed at two locations on the side surface 2 at intervals in the left-right direction.
The bolt insertion hole 4 is arranged slightly below the center in the vertical direction of the side surface.
A metal nut 7 (see FIG. 8) is fixed to the bolt insertion hole 4 by being embedded in the resin main body 1.
When the bolt 8 is screwed in at a right angle from the side surface, the tip of the bolt functions to hold down the side surface of the internal survey pile 5.
When the main body 1 is attached to the survey pile 5, the main body 1 is set by superimposing the upper surface 3 of the main body on the upper head of the survey pile 5 while aligning the positions of the exposure holes 9 and the nails 10 described later. Then, while checking the position of the survey pile 5, one of the two bolt insertion holes 4 is selected and the bolt 8 is screwed in. Since the bolt insertion holes 4 are formed at two positions with a space in the lateral direction (horizontal direction), even when the survey pile 5 is located at the corner of the main body 1, the bolt insertion hole on the side where the survey pile 5 is located is inserted. By screwing the bolts 8 through the holes 4, the internal survey piles 5 are held down by the bolts 8 from all sides, and the main body 1 is fixed.
前記正方形の上面３の中心に釘の露出孔９が形成されている。ここで、中心とは正方形の上面の４隅からの対角線が交わる位置である。
この露出孔９は短く上へ突出した円筒形状をなしており、円筒内を釘１０が通過してその頭部が露出するようになっている。
この釘１０は広大な造成地等における測量に不可欠な基準点を示すものであり、対空標識６の中心と位置を合わせて取り付けられる。
本体１を取り付ける場合には、釘１０の位置を露出孔９に挿入して位置合わせを行い、上面３を測量杭５の頂部面に載置する。
An exposed hole 9 for a nail is formed at the center of the upper surface 3 of the square. Here, the center is the position where the diagonal lines from the four corners of the upper surface of the square intersect.
The exposure hole 9 has a short cylindrical shape protruding upward, and the nail 10 passes through the inside of the cylinder to expose its head.
The nail 10 indicates a reference point that is indispensable for surveying in a vast land, and is attached in alignment with the center of the anti-aircraft sign 6.
When the main body 1 is attached, the position of the nail 10 is inserted into the exposed hole 9 for alignment, and the upper surface 3 is placed on the top surface of the survey pile 5.
本体１が取り付けられる測量杭５は、１辺４５ｍｍの断面正方形、長さ４５０ｍｍ〜６００ｍｍの木製の杭であり、上等部は赤に着色され、頂部は平らであり、下部は地面に打ち込まれるため、先鋭形状とされている。
地上に設置された測量杭５の頂部にはさらに基準を表す釘１０が打ち込まれる。この釘は正確な位置座標情報を示す基準部位であり、この釘１０に対空標識６の中心を合わせて取付ける。
The survey pile 5 to which the main body 1 is attached is a wooden pile having a square cross section with a side of 45 mm and a length of 450 mm to 600 mm, the upper part is colored red, the top is flat, and the lower part is driven into the ground. Therefore, it has a sharp shape.
A nail 10 representing a standard is further driven into the top of the survey pile 5 installed on the ground. This nail is a reference portion showing accurate position coordinate information, and the nail 10 is attached with the center of the anti-aircraft marker 6 aligned.
次に、第２実施例に係る対空標識固定治具を利用した測量方法を説明する。
地上用地測量により基準となる地点に測量杭５を設置する。この測量杭は計測地の広さ・地形等の状況に応じて複数の箇所に設置する。
測量杭５を設置した後、さらに詳細な基準部位を示す釘１０を頭部に打ち込む。この釘が測量の正確な基準点である。
次に対空標識固定治具を測量杭５の上から被せ、露出孔９と釘１０の位置を合わせながら、測量杭５の頂部面に本体１の上面３を重ね合わせて本体１をセットする。そして、杭の位置を確認しながら２か所のボルト挿通孔４のいずれか選択して、ボルト８をねじ込む。ボルト挿通孔４は横方向（水平方向）に間隔を開けて２か所に形成されているので、本体１の隅に測量杭５が位置した場合でも、測量杭５が位置する側のボルト挿通孔４からボルト８をねじ込むことにより、内部の測量杭５は四方からボルト８によって抑え付けられ、本体１が固定される。
Next, a surveying method using the anti-aircraft sign fixing jig according to the second embodiment will be described.
The survey piles 5 will be installed at the reference points according to the ground survey. This survey pile will be installed at multiple locations according to the conditions such as the size and topography of the measurement site.
After installing the survey pile 5, a nail 10 showing a more detailed reference site is driven into the head. This nail is an accurate reference point for surveying.
Next, the anti-aircraft sign fixing jig is put over the survey pile 5, and the main body 1 is set by superimposing the upper surface 3 of the main body 1 on the top surface of the survey pile 5 while aligning the positions of the exposure holes 9 and the nails 10. Then, while checking the position of the pile, one of the two bolt insertion holes 4 is selected and the bolt 8 is screwed in. Since the bolt insertion holes 4 are formed at two positions with a space in the lateral direction (horizontal direction), even when the survey pile 5 is located at the corner of the main body 1, the bolt insertion hole on the side where the survey pile 5 is located is inserted. By screwing the bolts 8 through the holes 4, the internal survey piles 5 are held down by the bolts 8 from all sides, and the main body 1 is fixed.
本体１を測量杭５に固定した後は、露出孔９の釘１０と、対空標識６の中心を位置合わせして本体上面３に対空標識６を取り付ける。本願では支持固定部が測量杭の頂部に支えられる共に、ボルト８によって固定されているので、対空標識６を水平方向に確実に支持固定できる。
本体上面３と対空標識６の固定に際しては面ファスナー、両面テープ、その他公知の着脱構造による。
After fixing the main body 1 to the survey pile 5, the nail 10 of the exposed hole 9 and the center of the anti-aircraft marker 6 are aligned with each other, and the anti-aircraft marker 6 is attached to the upper surface 3 of the main body. In the present application, since the supporting and fixing portion is supported by the top of the survey pile and is fixed by the bolt 8, the anti-aircraft sign 6 can be reliably supported and fixed in the horizontal direction.
When fixing the upper surface 3 of the main body and the anti-aircraft sign 6, a surface fastener, a double-sided tape, or other known attachment/detachment structure is used.
機器を搭載したドローン１１（無人飛行体）により上空より写真測量を行う（図１０参照）。
ドローン１１の飛行位置により周辺部に歪が生じる場合であっても、対空標識６はそれぞれ固有の識別模様を有しており、複数の対空標識６を重ね合わせることにより、歪を解消して正確なデータを取得可能である。
本実施例では作業員が入れない危険な場所や広大な商業施設造成にドローン１１を活用でき、上空（３０ｍ〜１５０ｍ以下）より数千点の測量データを１５分程度の飛行できる。それにより、今まで長期間かかっていた測量業務を省力化できる。
また、レーザー測量においては、ドローン１１に搭載したレーザー機器からレーザーを放射し、地上に反射したレーザーと機体のＧＰＳ位置情報を組み合わせて、正確な三次元地形データを取得可能である。
Photogrammetry is performed from above by a drone 11 (unmanned air vehicle) equipped with the equipment (see FIG. 10).
Even when distortion occurs in the peripheral part due to the flight position of the drone 11, the anti-aircraft signs 6 each have a unique identification pattern. It is possible to acquire various data.
In this embodiment, the drone 11 can be used to create a dangerous place where workers cannot enter or a vast commercial facility, and can fly several thousand survey data from the sky (30 m to 150 m or less) for about 15 minutes. As a result, it is possible to save labor for the surveying work that has taken a long time until now.
Further, in laser surveying, it is possible to obtain accurate three-dimensional topographical data by emitting a laser from a laser device mounted on the drone 11 and combining the laser reflected on the ground with the GPS position information of the airframe.
以上、実施例を説明したが、本発明の具体的な構成は前記実施例に限定されるものではなく、発明の要旨を逸脱しない範囲の設計変更等があっても本発明に含まれる。
例えば、前記実施例では正方形の箱状体の対空標識固定治具について説明したが、これに限らず、測量杭への取付部と、対空標識を水平方向に支持固定する支持固定部を備えた構成であれば本発明に含まれる。
また、前記実施例ではボルト挿通孔は２か所に設定したが、ボルト挿通孔の数、位置は適用する本体及び測量杭の大きによって適宜設定することが可能であり、ボルト挿通孔の左右間隔についても、本体の形状及び測量杭の大きさに応じ、測量杭が本体内のどこへ位置しても、ボルトによって抑え付けられる左右間隔であれば本発明に含まれる。
Although the embodiments have been described above, the specific configuration of the present invention is not limited to the above-described embodiments, and the present invention includes a design change and the like within a range not departing from the gist of the invention.
For example, although the square box-shaped anti-aircraft sign fixing jig has been described in the above embodiment, the present invention is not limited to this, and a mounting portion for mounting a survey pile and a supporting and fixing portion for horizontally supporting and fixing the anti-aircraft sign are provided. Any configuration is included in the present invention.
Further, although the bolt insertion holes are set at two places in the above-mentioned embodiment, the number and position of the bolt insertion holes can be appropriately set depending on the size of the main body and survey pile to which the bolt insertion holes are applied. Also, according to the shape of the main body and the size of the survey pile, wherever the survey pile is located in the main body, the present invention includes as long as the distance is left and right and is restrained by the bolt.
１ 本体
２ 側面
３ 上面
４ ボルト挿通孔
５ 測量杭
６ 対空標識
７ ナット
８ ボルト
９ 露出孔
１０ 釘
1 main body 2 side surface 3 upper surface 4 bolt insertion hole 5 surveying pile 6 anti-air sign 7 nut 8 bolt 9 exposure hole 10 nail
Claims (6)
測量杭の上頭部に配置された基準部位と、対空標識の中心を位置合わせして取り付け可能としたことを特徴とする対空標識固定治具。 It has a mounting part to the upper part of the survey pile and a support fixing part that supports and fixes the anti-aircraft sign horizontally.
An anti-aircraft sign fixing jig, characterized in that it can be attached by aligning the center of the anti-aircraft sign with the reference part placed on the upper head of the survey pile.
前記支持固定部は、測量杭の頂部に載置される上面によって構成されることを特徴とする請求項１〜２いずれか記載の対空標識固定治具。 The mounting portion is configured to tighten the side surface of the survey pile with bolts,
The said support fixing part is comprised by the upper surface mounted on the top part of a survey pile, The anti-aircraft sign fixing jig in any one of Claims 1-2 characterized by the above-mentioned.
正方形の上面の中心には釘の露出孔が形成されており、
側面には間隔をおいて複数のボルトの挿通孔が形成されていることを特徴とする請求項１〜３いずれか記載の対空標識固定治具。 With four side surfaces and a square top surface arranged on the four side surfaces,
An exposed hole for the nail is formed in the center of the upper surface of the square.
The anti-aircraft marker fixing jig according to any one of claims 1 to 3, wherein a plurality of bolt insertion holes are formed on the side surface at intervals.
The surveying method according to claim 5, wherein photogrammetry or laser surveying by a drone is performed.
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| JPH0921642A (en) * | 1995-07-03 | 1997-01-21 | Masao Suzuki | Landmark set on boundary stake |
| JP2007047139A (en) * | 2005-08-05 | 2007-02-22 | Ripuro:Kk | Marking pile |
| JP3205097U (en) * | 2016-04-05 | 2016-07-07 | 征二 前友 | Boundary mark installation equipment |
| JP3212102U (en) * | 2017-06-05 | 2017-08-24 | アオイコンサルタント株式会社 | Anti-air sign |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6384700U (en) * | 1986-11-21 | 1988-06-03 | ||
| JPH0886653A (en) * | 1994-09-14 | 1996-04-02 | Ishikawajima Harima Heavy Ind Co Ltd | Target jig for measuring structure |
| JPH0921642A (en) * | 1995-07-03 | 1997-01-21 | Masao Suzuki | Landmark set on boundary stake |
| JP2007047139A (en) * | 2005-08-05 | 2007-02-22 | Ripuro:Kk | Marking pile |
| JP3205097U (en) * | 2016-04-05 | 2016-07-07 | 征二 前友 | Boundary mark installation equipment |
| JP3212102U (en) * | 2017-06-05 | 2017-08-24 | アオイコンサルタント株式会社 | Anti-air sign |
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